Commitments and Contingencies (Contract Awards) (Details)	Dec. 30, 2019 bed	Dec. 23, 2019 bed	Jun. 05, 2019 bed inmate	May 02, 2019 bed	Apr. 25, 2019 bed
Loss Contingencies [Line Items]
Life term of contract				10 years
Immigration and Customs Enforcement
Loss Contingencies [Line Items]
Number of beds in detention facility		4,490
Life term of contract		15 years
Renewal term	8 years 9 months	5 years
El Centro Service Processing Center | US Marshall Service
Loss Contingencies [Line Items]
Number of beds in detention facility	512
Adelanto ICE Processing Center | Immigration and Customs Enforcement
Loss Contingencies [Line Items]
Number of beds in detention facility		1,940
Mesa Verde ICE Processing Center | Immigration and Customs Enforcement
Loss Contingencies [Line Items]
Number of beds in detention facility		400
Central Valley MCCF | Immigration and Customs Enforcement
Loss Contingencies [Line Items]
Number of beds in detention facility		700
Desert View MCCF | Immigration and Customs Enforcement
Loss Contingencies [Line Items]
Number of beds in detention facility		750
Golden State MCCF | Immigration and Customs Enforcement
Loss Contingencies [Line Items]
Number of beds in detention facility		700
Montgomery ICE Processing Center
Loss Contingencies [Line Items]
Number of beds in detention facility added			314
Number of inmates, capacity | inmate			1,314
North Lake Correctional Facility | Bureau Of Prisons (BOP)
Loss Contingencies [Line Items]
Number of beds in detention facility				1,800
Reeves County Detention Complex R3 | Bureau Of Prisons (BOP)
Loss Contingencies [Line Items]
Number of beds in detention facility				1,376
South Louisiana ICE Processing Center
Loss Contingencies [Line Items]
Number of beds in detention facility					1,000